1.10 assume that the spreading rate of 5 cm/yr has been constant throughout time. using the answers you
calculated above, how long have angola and brazil been spreading apart (in other words, when did pangaea
start to break apart in this region)? show all work and units. (6 pts)

Place the point of the compass on point b and draw an arc that intersects  be¯¯¯¯¯  , using    ab    as the width for the opening of the compass.  hope it

Answer// dinosaurs emerged during mesozoic era;

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

Ithink the answer  is d. tourism.hope this ☺☺